Superheater.



PATENTED DEC. 4, 1906.

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PATENTED DEC. 4, 1906.

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SUPERHEATER. APPLICATION FILED APB..12.1906.

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SUPERHEATER.

APPLICATION FILED APB.12,1906.

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N5. 837,844. PATENTED DEC. 4, 1906.

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SUPERHEATER. APPLICATION FILED APB.12,1906.

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Q I R} U 3 I R? IN wimeoaeo W UNITED STATES.

IZATENT OFF-10E".

HANS KEFERSTEIN, OF BARBERTON, on o. Y

SUP'EHHEATERI.

To all whom z'tmay concern:

Be it lmown that I, HANs O. KEFERs'rEIN, a subject of the German Emperor, residing at Barberton, in the county of Summit and State ofOhio, have invented certain new and useful Improvements in a Combined Boiler and superheater, of which the following is a specification.

My invention-relates to combined boilers and superheaters, and has for its objects the provision of a superheater to be used in connection with a steam-boiler and furnace for the purpose of securing dr and superheated steam, to be located, pre erably, in a spaceformed above the boiler-space of the furnace in orderto regulate the temperature of the steam, with the highest efficiency of fuel.

A further object of the invention is to provide dampers located between the superheater and the boiler passes or flues, by means of which the gases and other products of combustion may be controlled and regulated. By means of the dampers the heat from the furnace may be permitted to pa ss through the boiler fiues or passes directly to "the stack without materially affecting the superheater, or the gases may be divided, a portion' passing through the superheater pass or space, thence through aportion of the boilerspace to the stack, and another 1portion of the heat passing directly through 't e boiler-pass y to the stack,- or, finally,'the entire products of I combustion may be made to traverse the boiler space or passes, the su erheater-space, and thence pass to the stac by way of the remaining portion of the boiler-passes.

g The invention consists in certain'novel features of constructlon of dampers, comb1' nations, and arrangements of the boiler with the superheater, and other novel features of,

construction, as; specified hereinafter, more clearlypointed out in the claims, and'as illustrated in the accompanying drawings.

"- In the accompanying drawings I have illustrated several examples of'. t'i1e.physical embodiment of my invention-adapted for use with several different styles or types of boilmodes I have so far' devised for the practical [Referring to the ers and constructed according to the best applications of the principles of the'jnventLO 1 figures of-the dravs ings, Figure 1 is a central verticalsection illustrat- Specification of Letters Patent.

- Ap liatipn filed April 12, 1906. 8.3.111... 311,272.

Patented Dec. 4, 1906.

ing a type of water-tube boiler with my superheater ap lied; and Fig. 2 is a section of the same boi er, taken on a line at right anglesto Fig. 1. Fi s. 3 and 4 are sectional views taken at rig t angles to each other", illustrating a boiler with a vertical baflie-wall orpartition therein and showing arrangement of superheater and dampers. Figs. 5 and 6 are similar sectional views showing a modified form of the invention as illustrated in Figs. 1 and 2, and Fig. 7 shows a slight departure from the construction of Fig. 6. Fig. 8 illustrates a further modification of Fig. 2, showing the superheater connected with two boiler drums or shells. trate sections of a boiler with three steam drums-or shells and the superheater arranged vertically Figs. 11 and 12 illustrate sec- Figs. 9 and 10 illus tional views of a tubular boiler with the superheater applied thereto. s. 13 and 14 show two sections of a water-tu e boiler with the superheater in use. Fig. 15 is a sectional view of water-tube boiler with two controlling or regulating dampers. Figs. 16 and 17 illustrate another typeof water-tube boiler with the superheater a plied. Fig. 18 is a sectional view of.a boi er with superheater indicates the furnace. 2 designates the bridgewall, and 3 the'stack.

Referring to Figs. 1,2, 4, 6, 7, 8, 9, and 10, wherein different or slightly-modified forms of the water-tube type of boilers are illus trated, the steam drums or shells 4 are connected, as usual, bythe tubes 5 to the mud-,

drum 6, and inclined baffle-walls or parti-.

tions 7 and 8 divide the combustion chain"- ber into sections and deflect the travel of the products of combustion from the furnace throughout the boiler-sections. In Figs. 2, f3, 7, 8, 9 a horizontal 'partitionor wall 9 1s provlded to-further guide and divert the pplied and a modified form of damper em-' 11 located between said wall and travel of the ases of combustion. In all cases the super eater is located in a space superheater is located. l Vithin the superheater-space partitions 12 may be employed to insure proper traverse of the gases through the superheater-space and around the tubes of the same. In Fig. 2 a superheater having two heads or drums 10, with tubes connecting them, is illustrated, and of course in each instance the superheater is connected with the steam-drum or steampipe' thereof at the highest point. The construction illustrated in Figs. 3 and 4 cmbodies a water-tube boiler provided with vertical artitions or walls 13, and above the wall t e swinging dampers 11 are located to shut off or open communication between the superheater-space and the combustion-chamber of the furnace. f

The ordinary type of fire-tube boiler is illustrated in Figs. 11 and 12, in which the numeral 14 indicates the boiler-shell, and 15 the flues of the same, and the superheater is located above the partition-16, which partition guides the travel of thegases from the combustion chamber when the swinging damper 17 is in the position shown.

A modified form or .type of water-tube boiler is illustrated in Figs. 13 and 14, wherein the drums and water-tubes are arranged vertically, and the two vertical partitions or baffle-walls 18 and 19 guide the gases, the wall 18 having an extens on 18 located in the superheater-space and the swinging dampers its extension. 1

In the water-tube boiler shown in Fig. 15 the gases of combustion are guided by the inclined partitions or walls 20 21, as illustrated by the arrows.

In some instances the boiler construction may be as shown in Figs. 16 and 17, which construction is substantially a modification of the type shown in Figs. 3 and 4 but in them the ases of combustion pass to the rear of the com ustion-chamber from the furnace and traverse the space alo'ng the vertical wall 22 through the superheater-space and are de-' fle'cte by the second baflle-wall 23 over the furnace and up through the stack.

A modified form of damper is illustrated in Fig. 18 in connection with a common type of boiler. The damper 24 is shown in a cylindrical shell located'between the furnace and the combustion-chamber and movably supported by the baffle-wall 25. The damper is suspended and adapted to be moved on the rollers 26. (Dotted lines.) In the position illustrated the gasesare guided to the superheater-space for the purpose of heating the tubes of the superheater; but when moved to dotted position the shell or damper is out of line of the travel of gases, and they pass directly from the furnace or combustion-cham ber through the fiues of the boiler.

In the embodiment of the invention illustrated in Figs. 20 and 21 'a horizontal bafllewall or partition 27, with an opening therein adapted to be closed by the slide-plate 28, is located above the furnace and deflects the gases to the rear of the furnace. A second afile plate or wall 29 is located above the wall 28, and the swinging dampers 11, which While the dampers are in the positions in- 5 dicated, the gases rof combustion will flowthrough the furnace and boiler passes or flues,

' thence through the superheater-space, among the tubes of the superheater, and thence through the boiler-flues to the stack. If-the dampers are partly open, a part of tie gas flows through the boiler-passes and superheater-space to the stack, and another part flows through the boiler-passes to the stack. If it is desired,-'by closing the dampers the entire supply of gases may be directed to pass through the boiler passes or flues only, leaving the superheater untouched. rom the above description, taken in con,

nectionwith the drawings, it becomes, obvi- 119 ous that I have provided a device which fulfils all the conditions set forth as the purpose and'objects of my invention. I

Havingthus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is 1 1. The combination with a steam-boiler and furnace of a superheater located above the boiler and inclosfed by walls, the steamdrum of the boiler, a partition each side of 120 said steam-drum partly closing the space between said superheater and the combustionchamber, and swinging dampers adapted to entirely close, in connection with said partition, the communication between the super- 12 5 heater-space and the furnace.

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2. The combination with'asteam-boiler and furnace and the steam-drum thereof, of a superheater located above said drum, aperti f In testimony whereof I afiix my Signature tion each side of said drum partly closing 1 in presence of two witnesses. communication between the superheater and furnace, and a plurality of dampers adapted 1 KEFERSTEIN' 5 when closed, to form a continuation of the partitions and close communication between the superheater and the furnace.

Witnesses X J ALEXANDER, BERT RODENBAUGH. 

